Armature-coil winding and shaping device



ARMATUBE COIL WINDING AND SHAPING DEVICE Filed Dec. 8, 1923 6Sheets-Shet 1 w ATTORNEY Feb. 8; 1927. 1,616,947

G. BENDER ARMATURE con WINDING AND SHAf INQDEVICE' Filed Dec. 8, 1923 3 Sheets-Sheet 2 v INVENTOR- 9 $1M! ATTORNEY BY a Feb. .8, 1927."

. 1,616,947 -G.BENDER ARMATURE COIL WINDING AND SHAPING DEVICE Filed Dec. 8/1923. 3 Sheets-Sheet s.

L 95 (3;; I lNVE TOR eqtyr BY M ATTORNEY GEORGE BENDEB, OF-NEW'YORK. 1v. Y., ssIGNon'T'o Baa-T. coin FORMER & Toots-co.

Ind, 015 NEW-YORK, N. Y. I Y

ARMATURE COIL WINDING-AND' SHAPING DEVICE. Y

' Application. filed December 8,1923. Serial No. 679,417;

I This invention relates to a device-for pro ducing improved armature coils and particularly to improvements on the device-covered by Patent No; 1,460,737, issued July 3rd,

1923, to George'ivf'lownsend, with whom lam-associated.

Armature coil devices torproducingcoils for dynamo electric machines are; known, and particularly types producingform wound'armature coils.v The present invention deals, however, with a device by which not only the coil may be" wound, but also shaped which alsospermits the spreading or forming of the coil withoutlnecessitating' the wound coil to be entirely released from the machine and placed ina different device for spreading the coil. A very important feature covered by the aforementioned patent is the method and means whereby the end loops or noses of the wound coil are released from their winding posts and clamped,preparatory to spreading or forming in such a manner, that the wire between the noses is bent at a clamping. line which coincides. with the tangent passing through the outermost point of the inner periphery of the smallest wire ofthe'noses, which pointlies in the longitudinalcenter line of theoriginally wound plane-coil when it is released from the'winding posts.

The advantages derived from this manner of producing the coils are, firstly, the elimie' nation of long noses which are impractical in producing compact armatures; secondly, the saving of space-and wire andthirdly. the production of eXa-ctlylike shapes ot'unitorm dimensions when once the device isset to produce a certain form of acoil.

The objects of the present invention are to enhance the practicability and inn'arove the operation and increase theadaptability of such a device, while at'the same time a greater speed is achieved'in production of the desired'coils. 7

Another object of my invention is to pro vide is such device, improved wire receiving or gauging means which are made ad-- justableand pern'iit a greater variance of ups to accommodate different sizes of wire tor coils of various dimensions.

.Another object of my invention is to provide improved clamping: means for: the wound coils, whereby va quick adjustment and a ready removal of'thespread coil is possible: y I Another object of myinvention is to provide improved holders, guides-or supports for the clamps, which latter are to follow uniformly the spreading operationot the coil, said improved holders permitting, an

automatic adjustment of said 'clamps inall directions.

Another object of my invention is tojprovide in my device, an adjustable-guide bar adapted to change its angular relation to the mainor guide frame of-m-y device, so

that. the spread-operation may takeplace at various angles whereby special; shapes of coils may be: produced.

Another obj ectof invention is toprovidein connectionwith such machine, an

operating mechanism, whereby the rapid spreading by either hand or powerlmaybe accomplished.

Another-objectoi my inventioiris pro vide in connection with such mechanism; an automatic stop device WhIClTHS :adyustable so-thatia coil: may bespread to ardesired degree. and which device willautomatically arrest the further spreading-10d? the CO lla:

Another object of my invention is to provide various manual' means forv spreadingza coil and means-foractuatingthespreading mechainsm. I Another-object of my-invention isto providemeans whereby the spreading mechanism may be actuatedby'power when so desired. a

' The foregoing and turtherobjects wilL be more fully apparent from'the followinga'de scriiption and? the accompanying: drawings, forming part of thisspecification, but illustrating. only a few oiithe possible: forms of my device, intended forfthefvariousspurposes. Threfeoreit is obvious that iniworkiing out this invention in practice-changes may be made in the construction, without depart i-ng; from the broadzscope of :my? idea of the principle, for which they are intended.

Referring to the drawings, g 1 Figure 1 is a plan view- 0f imydevice: Figure 2-and: Figure: 3 are adjustable bar 5.

block members adapted to be associated with the wire receiving carriages. 7

Figure 4 is an enlarged side elevation, partially in section of a portion of a carriage with clamping means for said blocks.

Figure 5 is a modified form of clamping. means for such blocks.

form of my adjustable guide bar, including partof the coil spreading mechanism.

Figure 10 is a modified form of an adjustable guide bar, also with a part of the coil spreading mechanism.

Figure 11 is a cross-sectional view through the guide bar taken on line 1111 of Figure 9.

Figure 12 is a top view of part of the clamp support of my device.

- Figure 13 is an elevation thereof with the bolt left out.

Figure 14 is a partial front elevation of the other part of the clamp support. 7

Figure 15 is a side elevation, partially in section, thereof.

Figure 16 shows a side elevation partially in section of a modified form of my device.

Figure 17 is a detail view, partially in section therethrough, which is taken on line 1717 of Figure 18. V

Figure 18 is a detail view in section, taken on line 1818 of Figure 17.

Figure 19 is a sectionaldetail view taken on line 1919 of Figure 17. I

Figure 20 is a partial detail view and partial in section of the upper or movable carriage of my device.

Figures 21, 22 and'23 represent modified forms of the adjustable guide bar and of the carriage operating mechanism.

Figure 24 is another modified form of the. guide bar and carriage operating mecha nism.

Figure 25 is a partial detail view of the movable portion of the guide bar, as connected with the last mentioned modified form. 7

Referring to the drawings, numeral 1 represents the bearing member, attached in any convenient manner to a table or stand, indicated at 2 inFigure 16, in which bearlng member, the main or guide frame 3 is .rotatably mounted at i. The guide frame 3 is composed of two bars between which a slot is provided for receiving a central guide The latter is shown in cross-section in Figure 11.

j The main frame serves as guide for winding posts indicated at 6 which are adjustable mountedupon guide bar 0, are the carri.

'bar 5;

longitudinally within the guide frame 3 and of their center axis. 7 I

They are equipped with adjustable discs 7, the distance between which, may be changed to accommodate various sizes of w cs.

Associated with guide frame 3, are universal joints which comprise guide blocks 8,

which may also be adjusted in the direction preferably clamped to the frame and held in position, by means of boltsindicated at 9.

The sliding members are shown in detail in Figures 12 and 13, where the general outline is shown to comprise a-substantially angular form, having an extension 10 provided with an aperture 11. The longer arm of the guide member is provided with guide I bosses 12 and 13; the latter guide boss is tanped at 14 'fOITBCBIVJDg bolt 9.,

The holell serves to receive a swivel joint indicated, at 15 and shown in Figures '14 and 15. This swivel oint comprises a rectangular frame 16 provided with an aperture 17 which is cut obliquely as shown at 18. Thesides of the frame are enlarged at 19, for accon'in'iodating a set screw or any other clamping means 20. 7

Held by these setscrews, is a sleeve 21 whichserves as guide for bars 22, at the end of which ar adj ustably attached coil clamps 23. These coil clamps comprise two flat members, one of which'is stationary, the.

other movable, and which. are held together bv any convenient means indicated at 24..

it the free andextreme end of these clamping discs, there is provided a small pin indicated at 25, which facilitates the clamping of the coil at a tangent of the innermost lee-p of the coil. The coil clamps are made adjustable and movable as indicated, for insta'nce,'at 26 and shown enlarged in Figure 6, where the clamp proper 23 is provided with a slot, while bar 22. also is slotted,

through which. slots pass clamping bolts 27,

which are readily adjustable.

A modified form of the clamp 13 shown in Figure 7 where the bar 22 is provided with an extension 28, to which one clamping disc is permanently attached, while the other remains adjustable. 7

Another modified form'of the adjustable clamps is shown in Figure 8, wherethe bar 22 is provided with an enlargement 29, forming a socket for the clamp entension 50, which is held in adjusted position by m ans of set screw 31 Referring to Figures 1 and 16, slidably ges 32 and The lower carriage 32 is under cut and en ages the Swallow tail shaned'oor-' L. w 0 c I I u (g l 0 @1011 indicated at 012 in Figure 11 or guide This carriage is preterably held stationary relative to thebar. The upper carriage 33' is movable relative to the bar.

Both of the carriages provide wire receiving means which are composed of anangir lar member which may be -made adjust able relative to the carriage. andIadjiustable blocks 35 which 'are'shownin detailinEigtires 2" and 3 in preferred for1ns,lbut which may take any desired shape, depending upon the desire to" wind heavier or lighter coils I construct my blockspreiferably inthe manner SllOVIl'lIl these two .hgures providing them with one longitudinal slot 36 or across slot 37; so that these blocks become hollow and provide for accommodation of a clamping screw, indicated at 38; V 'l-lowever these blocks may belmadesolid and only with one central hole, as for instance, shown in Figure 4, or they maybe entirely solid and provided with anvextendingpinshown in Figure at 39, which pin engages a'slot40 provided the carriage I11 the latter described modification, a

clamping bar 41*is employed which is providedwith two bolts 42, 'bymeans-of which the position of block'35 is'assured.

In Figure 4, the constructionshows that the block is held by bolt 38,ibut is additionally secured'by aspecial clamp 43 to prey'ent any breakage of bolt 3S. duringjjthe operaures and 16, where the guide bar is oi'fset -or recessedat its free end-as indicated at 4.5, and in the recessed portion, there is pro'- vided a hinged member 46 which is adjustable in angular relation to the'solidportion of the baigl byfany-convenient means, as for instance indicated at" 47. The an ular deflection of the guide bar end is of, veny' marked importance for the reason that in spreading a coil, it is very often desired to spread it at wan angle, to 'accommodatethe circular shape of-the. future armature for "which'the'coil isintended. I

J In order. to permitlthe smooth movement of the upper carriage 33, upon the vinclined surface of the "hinged end" portion of the bar 5, the carriage is at 47' in Figure 20. I V p a Y Referring to Figure' f); theadjustment of the hinged end of guide bar-,5 and the undercut as indicated positioning of the latteris facilitated by a hand operated catc h 48, which registers with the notches provided in the cylindrical per- The upper carriage 2-33 J v bar 5 is'shown the endof which is hinged as indicated at 71; Acarriage 33 is slid-- tion of thehinge, may be operated by hand, for which the side-lugs 49- (Figure with pins equipped with a infbroken'lines at 50.

purpose are provided Since, however, the manual operation of the carriage proper is rather dlfiicult and tiresome, I have constructed a-more mechanical way of actuating the carr age; I provide a detaehableend beafing 51 (Figure handle indicated i 16) which maybe readily. secured tofthe end ofthezguidekbarb and which is equipped *Slidably mounted with the swallow tailor undercut portion of bar 5 is anutcarriage 5T, prov dinga bearmg-58 'tor spindle 52.

-with zifspindle 52,"-"whichlatter is operable This carriage may beaequipped with side handles 59 ifso-desired; At the lower portionof the nut carriage is provided a hinged connection indicated at 60 rloy' means of which the nut arm'6l' isic'onnected with the carriage At the end of the nut arm there is a half-nut 62' provided which engages the spindle 52. Thearmfilrhas a side'lug 61 against which bears a' belljcrank lever 63 adapted to disconnect manually nut 62 from spindle 52. Nut arm 6l;is"held in its engaging position by anyconvenient 'means as 1 indicated at 64 a -;'An automatic release is providedfin coir neat-ion with the operating mechanism so that when a certain point inspreadingthe eoil is'reached, the nut. 62- will be quickly disengaged from spindle 52; This automatic releasei-isof course adjustable. relative to the guidebar 5 and may be clamped thereto by I means of set screws 65 iniFigure19L V The main inec'hanismof therelease c on srsts ot a bell cranh-lever'69 which 15 of double fork-like shape. It is springactuated asindicate'dat 67 and held in normal position shown in Figurel'l. 'The'shorter arinQtiS of the'bell crank is alwaysnin position to interceptthe nut 62-, whilethe longer arm 69 permits the nuts to freely pass by it.

The moment", however, the shorter arm'is touched by the oncoming nut the longer arm is swungviolently against the nut as shown by an arrowEin Figure 17 and rapidlydis engages the nut from spindle 52. Connecting carriage 38*with nutearriage157, a rod 69 or a chain7O oi-any, other convenient connecting member-,zm ay be provided; which will allow not only a straight pull upon carriage 33, while guide bar f5vis'in its normal position; but also allow an angularpullwhen the end of the bariis swung at'angular-relationrelative to main frame 8. I V or '7 Referring'to Figures 21: and-22, aguide to bar end 72 by'me'ans; of bolts 74. In this modified' form, "it is seen that the carriage 33 is provided \vith lug? 5 adaptedto re 'ceive the 'end of a pull chain or another kind 0t flexible connection indicated at 76, and

'88, below guidebar portion 87 adapted tobe pulled by means ol. a sheave 77, upon whic the fiexiblenjieinber is gradually rolled, mwvlnch manner, carriage is pulled towardtheendot bar-end 7 2.

Thesheave may be operated by means of miter gears indicated at 78,and aihandlfe 7 9, or may be operated directly 'as shown .in Figure 23, Where the miter gears are left out an l' the; sheave this figure, is operated directly handle I r 7 It willbe seen in this figure that chain 76 is secured to the gsheaveat 80, thereby causing the chain to be gradually rolled thereon between the flangesot the sheave.

It is obvious that any kind of flexible member may be employed in the 01 crating mechanism, but preferably a slink-chain is used.

. In Figure 24, there is illustrated another guide bar, which is reduced at its end so.

bars 81 an d as to accommodatetwo flat side The 82, which are hinged to bar a at'83,

flat bars are connected; at their extreme end by adetachable frame indicated at 84:,

Which provides bearings for. a sheave-85. 7

At the lower portion of the guide. bars is provided a raisingmechanisin of any suit-a ble construction aszfor instance,'indicated at'86. The carriage 33" is adapted to not only slide upon the guide bar 5", but also upon the flat-sidebars Sland 82, which 'may be elevated shown inlTigure 24.

The reduced; end provided with bearings 88. 21A hain orotherfilexible element 89'is connectedto 'the carriage at 90 and ifs-directed over idler sheavey85 and idler sheave 1 At: the end .ofr-this guide bar portion .disposedbelow idler sheave 88, there is pro Vided a bearing- 91, accoinniodatingthe reduced end 92 of athreaded spindle 93.. The

othene nd" of the spindle 93' is lodged in suitable bearings, not'shown in ings. The chain, 89,..having passed over the two" sheaves and disposed now )elow the reduced end 87 of guide bar 5, is attached to a spl.itnut indicated at. 94, which is nor mally. held apart by means of: expansion springs 95. f

ildjustablyiattached to guide bar 5'. are two. adjustable stops-indicated at 96 and'97. The eneend ot the split nut 9i is cone-- shaped as ind'icatedat 98 and is adapted to engag asolid collar; 99 when the latter against the nut, thus closing the nut hrust into operative.- engageinent Yr'ltll spindle 9.5;. I The moment collar 99 reaches step 96 the nut travelling in left hand direction disengage itself "fromv the collar and; is

77, shownin section in v the nut and therefore that of In order. to win'd a coil, first a Wire is relative to .the guide bar 5",

87 lot guideibar '55, is:

for another sheave and the draw Qriages.

broughtapart,;and out oif engagen ent with J the spindle, therebystopping the'moveinent ot-the chain. and thusloi' carriage 33".

When 'the'nut 94 is brought back, by slid: ing it manually oi 'er the spindle, while in open position, and when the: nut finally. reaches ring 99, the latter causes the nut 9 l to close and to: engage the spindle. V

This operation is accomplished when collar 99 will for instance, abut withv stop the. movement of the carnage may beset to any desired distance,

adjusting stops 96 and 97,

Spindle 93 may be, operated either by.

handle or by nieans ot a fiexible'shatt .100" which engagesa square 'end lOl ottheispin dle by its socket 102. 1 V

' I Operational.

placed about inding post "6' and is per- Qmeans97. It isrobvi'ous, therefore, that by} mitts-d to passbetWeen the angular eXten sions 3 t and the adjustableblocks35 of the been made, the clamp discs 7 are disengaged to tree the'no'xv plainly-Wound coil.

Now, the noses of the coil are clamped into clamps 23. The guide bar is either permitted to remain straighter its endadjusted .atthe desired angle and, eitherof the operating mechanisms shown in thedraW- carriages The guide frame is now rotated until; the proper amount of windings are made r 1 v f When a sufficient number otturns have 'ings, is set in nictionby hand. or power,

thereby causing. the movement o f the slidable carriages 33 or 33 0: II i 03) It is obvious that prior to movingthe carriage, the stop'ineans are adjusted to the desiredpoint whereby. an automaticjstop of ideaslot the operating mechanisms connected with my device, be it understood that other mprovements, changes in designand construction may be readily made within the changes and improyeinents, .Without' departjrein thebroad scope of my idea, for Whiclil claim: V 1. In anarmature ing device, having-fa guide frame, guide coil lw'jnaai iaiid sha scope-lot my invention andl, therei'tore, reserve for myee'ltstlier right to make vsuch bar extending from the latter, a plurality of wire receiving means associated therewith v and supported by it, a portion of said guide bar adapted to be adjusted angularly relative to said guide frame, means detachably associated with said guide bar for operat ing one of the wire receiving means when said guide bar portion is either in its normal position or at an angle relative to said guide frame.

2. In an armature coil winding and shaping device,'a guide frame, a guide bar extending therefrom, a portion of said guide guide bar and adapted to check the move-- ment of said movable wire receiving means at a predetermined point.

3. In an armature coil winding and shaping device, as per claim 2, said operating means comprising a spindle, a nut capable of rapid automatic disengagement from the spindlewhen it reaches a stop device, means for manually disengaging the nut from said spindle at will, means for transmitting the motion from said operating'means to said movable wire receiving means and means for actuating said spindle.

4. In an armature coil winding and shaping device, as per claim 2, said operating means comprising a spindle and an automatically releasable nut, engaging said spindle, said adjustable stopmechanism comprising a slidable frame adapted to be set at a desired point upon said guide bar, a fork-like double-armed lever adapted to be engaged at its shorter arm by said nut, thereby causing the longer arm of said lever to force said nut out of engagement with said spindle. I V

5. In an armature coil winding and shaping device, a guide bar, a hinged extension associated with the latter, means for changing the angular position of said extension relative to said bar, a movable carriage resting on said bar, an operating mechanism associated with said bar and adapted to actuate said carriage,= fiexible means connecting said operating mechanism with said carriage, and adjustable stop means for limiting the movement of said carriage.

Signed at New York in the county of New York and State of New York this 1st day of December, A. D. 1923. v V

GEORGE BENDER, 

